/* Returns device name (e.g. "sdc") on success, or NULL
* on failure.
*/
char *
virSCSIDeviceGetDevName(const char *sysfs_prefix,
const char *adapter,
unsigned int bus,
unsigned int target,
unsigned long long unit)
{
DIR *dir = NULL;
struct dirent *entry;
char *path = NULL;
char *name = NULL;
unsigned int adapter_id;
const char *prefix = sysfs_prefix ? sysfs_prefix : SYSFS_SCSI_DEVICES;
if (virSCSIDeviceGetAdapterId(adapter, &adapter_id) < 0)
return NULL;
if (virAsprintf(&path,
"%s/%d:%u:%u:%llu/block",
prefix, adapter_id, bus, target, unit) < 0)
return NULL;
if (virDirOpen(&dir, path) < 0)
goto cleanup;
while (virDirRead(dir, &entry, path) > 0) {
ignore_value(VIR_STRDUP(name, entry->d_name));
break;
}
cleanup:
VIR_DIR_CLOSE(dir);
VIR_FREE(path);
return name;
}
static int
testSchemaDir(const char *schema,
virXMLValidatorPtr validator,
const char *dir_path)
{
DIR *dir = NULL;
struct dirent *ent;
int ret = 0;
int rc;
char *test_name = NULL;
char *xml_path = NULL;
struct testSchemaData data = {
.validator = validator,
};
if (virDirOpen(&dir, dir_path) < 0)
return -1;
while ((rc = virDirRead(dir, &ent, dir_path)) > 0) {
if (!virStringHasSuffix(ent->d_name, ".xml"))
continue;
if (ent->d_name[0] == '.')
continue;
if (virAsprintf(&xml_path, "%s/%s", dir_path, ent->d_name) < 0)
goto cleanup;
if (virAsprintf(&test_name, "Checking %s against %s",
ent->d_name, schema) < 0)
goto cleanup;
data.xml_path = xml_path;
if (virTestRun(test_name, testSchemaFile, &data) < 0)
ret = -1;
VIR_FREE(test_name);
VIR_FREE(xml_path);
}
if (rc < 0)
ret = -1;
cleanup:
VIR_FREE(test_name);
VIR_FREE(xml_path);
VIR_DIR_CLOSE(dir);
return ret;
}
int virProcessGetPids(pid_t pid, size_t *npids, pid_t **pids)
{
int ret = -1;
char *taskPath = NULL;
DIR *dir = NULL;
int value;
struct dirent *ent;
*npids = 0;
*pids = NULL;
if (virAsprintf(&taskPath, "/proc/%llu/task",
(unsigned long long)pid) < 0)
goto cleanup;
if (virDirOpen(&dir, taskPath) < 0)
goto cleanup;
while ((value = virDirRead(dir, &ent, taskPath)) > 0) {
long long tmp;
pid_t tmp_pid;
if (virStrToLong_ll(ent->d_name, NULL, 10, &tmp) < 0)
goto cleanup;
tmp_pid = tmp;
if (VIR_APPEND_ELEMENT(*pids, *npids, tmp_pid) < 0)
goto cleanup;
}
if (value < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_DIR_CLOSE(dir);
VIR_FREE(taskPath);
if (ret < 0)
VIR_FREE(*pids);
return ret;
}
static virUSBDeviceListPtr
virUSBDeviceSearch(unsigned int vendor,
unsigned int product,
unsigned int bus,
unsigned int devno,
const char *vroot,
unsigned int flags)
{
DIR *dir = NULL;
bool found = false;
char *ignore = NULL;
struct dirent *de;
virUSBDeviceListPtr list = NULL, ret = NULL;
virUSBDevicePtr usb;
int direrr;
if (!(list = virUSBDeviceListNew()))
goto cleanup;
if (virDirOpen(&dir, USB_SYSFS "/devices") < 0)
goto cleanup;
while ((direrr = virDirRead(dir, &de, USB_SYSFS "/devices")) > 0) {
unsigned int found_prod, found_vend, found_bus, found_devno;
char *tmpstr = de->d_name;
if (strchr(de->d_name, ':'))
continue;
if (virUSBSysReadFile("idVendor", de->d_name,
16, &found_vend) < 0)
goto cleanup;
if (virUSBSysReadFile("idProduct", de->d_name,
16, &found_prod) < 0)
goto cleanup;
if (STRPREFIX(de->d_name, "usb"))
tmpstr += 3;
if (virStrToLong_ui(tmpstr, &ignore, 10, &found_bus) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse dir name '%s'"),
de->d_name);
goto cleanup;
}
if (virUSBSysReadFile("devnum", de->d_name,
10, &found_devno) < 0)
goto cleanup;
if ((flags & USB_DEVICE_FIND_BY_VENDOR) &&
(found_prod != product || found_vend != vendor))
continue;
if (flags & USB_DEVICE_FIND_BY_BUS) {
if (found_bus != bus || found_devno != devno)
continue;
found = true;
}
usb = virUSBDeviceNew(found_bus, found_devno, vroot);
if (!usb)
goto cleanup;
if (virUSBDeviceListAdd(list, usb) < 0) {
virUSBDeviceFree(usb);
goto cleanup;
}
if (found)
break;
}
if (direrr < 0)
goto cleanup;
ret = list;
cleanup:
VIR_DIR_CLOSE(dir);
if (!ret)
virObjectUnref(list);
return ret;
}
/**
* xenInotifyOpen:
* @conn: pointer to the connection block
* @name: URL for the target, NULL for local
* @flags: combination of virDrvOpenFlag(s)
*
* Connects and starts listening for inotify events
*
* Returns 0 or -1 in case of error.
*/
int
xenInotifyOpen(virConnectPtr conn,
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
unsigned int flags)
{
DIR *dh;
struct dirent *ent;
char *path;
xenUnifiedPrivatePtr priv = conn->privateData;
int direrr;
time_t now = time(NULL);
virCheckFlags(VIR_CONNECT_RO, -1);
if (priv->configDir) {
priv->useXenConfigCache = 1;
} else {
/* /var/lib/xend/domains/<uuid>/config.sxp */
priv->configDir = XEND_DOMAINS_DIR;
priv->useXenConfigCache = 0;
if (VIR_ALLOC(priv->configInfoList) < 0)
return -1;
/* populate initial list */
if (virDirOpen(&dh, priv->configDir) < 0)
return -1;
while ((direrr = virDirRead(dh, &ent, priv->configDir)) > 0) {
if (STRPREFIX(ent->d_name, "."))
continue;
/* Build the full file path */
if (!(path = virFileBuildPath(priv->configDir, ent->d_name, NULL))) {
VIR_DIR_CLOSE(dh);
return -1;
}
if (xenInotifyAddDomainConfigInfo(conn, path, now) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Error adding file to config list"));
VIR_DIR_CLOSE(dh);
VIR_FREE(path);
return -1;
}
VIR_FREE(path);
}
VIR_DIR_CLOSE(dh);
if (direrr < 0)
return -1;
}
if ((priv->inotifyFD = inotify_init()) < 0) {
virReportSystemError(errno,
"%s", _("initializing inotify"));
return -1;
}
VIR_DEBUG("Adding a watch on %s", priv->configDir);
if (inotify_add_watch(priv->inotifyFD,
priv->configDir,
IN_CREATE |
IN_CLOSE_WRITE | IN_DELETE |
IN_MOVED_TO | IN_MOVED_FROM) < 0) {
virReportSystemError(errno,
_("adding watch on %s"),
priv->configDir);
return -1;
}
VIR_DEBUG("Building initial config cache");
if (priv->useXenConfigCache &&
xenXMConfigCacheRefresh(conn) < 0) {
VIR_DEBUG("Failed to enable XM config cache %s", conn->err.message);
return -1;
}
VIR_DEBUG("Registering with event loop");
/* Add the handle for monitoring */
if ((priv->inotifyWatch = virEventAddHandle(priv->inotifyFD, VIR_EVENT_HANDLE_READABLE,
xenInotifyEvent, conn, NULL)) < 0) {
VIR_DEBUG("Failed to add inotify handle, disabling events");
}
return 0;
}